ethyl 2-chloro-6-methyl-4-phenylnicotinate | 183551-54-4

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 吡啶及其衍生物
• 英文名称: ethyl 2-chloro-6-methyl-4-phenylnicotinate
• 英文别名: ethyl 2-chloro-6-methyl-4-phenyl-3-pyridine carboxylate；Ethyl 2-chloro-6-methyl-4-phenylpyridine-3-carboxylate
• CAS: 183551-54-4
• 化学式: C₁₅H₁₄ClNO₂
• 分子量: 275.735
• InChiKey: PYXNYPMVFQHNEM-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  4.1
• 重原子数：
  19
• 可旋转键数：
  4
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.2
• 拓扑面积：
  39.2
• 氢给体数：
  0
• 氢受体数：
  3

反应信息

• 作为反应物：
  描述：

  ethyl 2-chloro-6-methyl-4-phenylnicotinate 在 sodium hydroxide 、 氯化亚砜 、 sodium hydride 、 三乙胺 、 N,N-二甲基甲酰胺 作用下， 以 四氢呋喃 、 乙醇 为溶剂， 反应 2.0h， 生成 4-[3,5-bis(Trifluoromethyl)benzyl]-2,3,4,5-tetrahydro-8-methyl-5-oxo-6-phenyl pyrido[3,2-f][1,4]oxazepine
  参考文献：
  名称：

  Amide-based atropisomers in tachykinin NK1-receptor antagonists: synthesis and antagonistic activity of axially chiral N-benzylcarboxamide derivatives of 2,3,4,5-tetrahydro-6H-pyrido[2,3-b][1,5]oxazocin-6-one

  摘要：

  A series of novel N-benzylcarboxamide derivatives of bicyclic compounds, 3,4-dihydropyrido[3,2-f][1,4]oxazepin-5(2H)-one and 2,3,4,5-tetrahydro-6H-pyrido[2,3-b][1,5]oxazocin-6-one, were synthesized by cyclization of N-benzyl-2-chloro-N-(2-hydroxyethyl)-and -(3-hydroxypropyl)-nicotinamides, respectively. Atropisomerism was observed in 5-[3,5-bis(trifluoromethyl)benzyl]-7-phenyl-2,3,4,5-tetrahydro-6H-pyrido[2,3-b][1,5]oxazocin-6-ones due to steric hindrance of the carboxamide moiety and restriction of its rotation. Cyclization of N-[3,5-bis(trifluoromethyl)benzyl]-2-chloro-N-[(2S)-3-hydroxy-2-methylpropyl]-5-methyl-4-phenylnicotinamide gave (3S)5-[3,5-bis(trifluoromethyl)benzyl]-3,8-dimethyl-7-phenyl-2,3,4,5-tetrahydro-6H-pyrido[2,3b][1,5]oxazocin-6-one, which exists predominantly in the thermodynamically stable aR-conformer in CDCl3. This compound showed excellent NK1-antagonistic activity with IC50 value (in vitro inhibition of [I-125]-Bolton-Hunter-substance P binding in human IM-9 cells) of 0.47 nM, which is ca. 200-fold more potent than that of its enantiomer, indicating that the atropisomer chirality affects NK1-receptor recognition. (C) 2004 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.tet.2004.01.097
• 作为产物：
  描述：

  ethyl 2-cyano-5-(dimethylamino)-3-phenylhexa-2,4-dienoate 在 盐酸 作用下， 以 乙酸乙酯 为溶剂， 以68%的产率得到ethyl 2-chloro-6-methyl-4-phenylnicotinate
  参考文献：
  名称：

  Amide-based atropisomers in tachykinin NK1-receptor antagonists: synthesis and antagonistic activity of axially chiral N-benzylcarboxamide derivatives of 2,3,4,5-tetrahydro-6H-pyrido[2,3-b][1,5]oxazocin-6-one

  摘要：

  A series of novel N-benzylcarboxamide derivatives of bicyclic compounds, 3,4-dihydropyrido[3,2-f][1,4]oxazepin-5(2H)-one and 2,3,4,5-tetrahydro-6H-pyrido[2,3-b][1,5]oxazocin-6-one, were synthesized by cyclization of N-benzyl-2-chloro-N-(2-hydroxyethyl)-and -(3-hydroxypropyl)-nicotinamides, respectively. Atropisomerism was observed in 5-[3,5-bis(trifluoromethyl)benzyl]-7-phenyl-2,3,4,5-tetrahydro-6H-pyrido[2,3-b][1,5]oxazocin-6-ones due to steric hindrance of the carboxamide moiety and restriction of its rotation. Cyclization of N-[3,5-bis(trifluoromethyl)benzyl]-2-chloro-N-[(2S)-3-hydroxy-2-methylpropyl]-5-methyl-4-phenylnicotinamide gave (3S)5-[3,5-bis(trifluoromethyl)benzyl]-3,8-dimethyl-7-phenyl-2,3,4,5-tetrahydro-6H-pyrido[2,3b][1,5]oxazocin-6-one, which exists predominantly in the thermodynamically stable aR-conformer in CDCl3. This compound showed excellent NK1-antagonistic activity with IC50 value (in vitro inhibition of [I-125]-Bolton-Hunter-substance P binding in human IM-9 cells) of 0.47 nM, which is ca. 200-fold more potent than that of its enantiomer, indicating that the atropisomer chirality affects NK1-receptor recognition. (C) 2004 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.tet.2004.01.097

文献信息

• Heterocyclic compounds, their production and use
  申请人：——

  公开号：US20020132817A1

  公开（公告）日：2002-09-19

  A compound represented by the formula: 1 wherein ring M is a heterocyclic ring wherein —X═Y< is one of —N═C<, —CO—N< or —CS—N<; R a and R b are bonded to each other to form Ring A, or they are the same or different and represent, independently, a hydrogen atom or a substituent on the Ring M; Ring A and Ring B represent, independently, an optionally substituted homocyclic or heterocyclic ring, with the proviso that at least one of them is an optionally substituted heterocyclic ring; Ring C is an optionally substituted homocyclic or heterocyclic ring; Ring Z is an optionally substituted nitrogen-containing heterocyclic ring; and n is an integer from 1 to 6, or a salt thereof has a tachykinin receptor antagonistic activity in vitro, and is useful for preventing or treating depression, anxiety, manic-depressive illness or psychopathy.

  一种由以下通式表示的化合物：1，其中环M为杂环环，其中—X═Y<为—N═C<、—CO—N<或—CS—N<之一；Ra和Rb彼此连接形成环A，或者它们相同或不同，独立地表示氢原子或环M上的取代基；环A和环B独立地表示可任选取代的碳环或杂环环，条件是至少一个为可任选取代的杂环环；环C为可任选取代的碳环或杂环环；环Z为可任选取代的含氮杂环环；n为1至6的整数，或其盐在体外具有速激肽受体拮抗活性，并可用于预防或治疗抑郁症、焦虑症、双相情感障碍或精神病。
• DRUGS
  申请人：Takeda Chemical Industries, Ltd.

  公开号：EP1145714A1

  公开（公告）日：2001-10-17

  The present invention relates to a medicine which comprises a compound (I) of the formula: [wherein the ring M is a heterocylic ring having -N=C<, -CO-N< or -CS-N< as a partial structure ―X=Y〈, Ra and Rb are bound to each other to form the ring A, or they are the same or different each representing a hydrogen atom or a substituent on the ring M; the rings A and B each is an optionally substituted homocycle or heterocycle, and at least one of them is an optionally substituted heterocycle; the ring C is an optionally substituted homocycle or heterocycle; the ring Z is an optionally substituted nitrogen-containing heterocycle; and n is an integer of 1 to 6] or a salt thereof in combination with a drug having an emetic action. The compounds (I) or their salts are useful as anti-emetic drugs. Particularly, vomiting caused by drugs having an emetic action can be inhibited by these compounds rapidly and safely at a low dose.

  本发明涉及一种药物，该药物由式(I)化合物组成： [其中环 M 是杂环，具有-N＝C〈、-CO-N〈或-CS-N〈作为部分结构-X＝Y〈、 Ra 和 Rb 相互结合形成环 A，或者它们相同或不同，各自代表环 M 上的一个氢原子或一个取代基； 环 A 和环 B 各自是任选取代的均环或杂环，其中至少一个是任选取代的杂环； 环 C 是任选取代的均环或杂环 环 Z 是任选取代的含氮杂环；以及 n 是 1 至 6 的整数］ 或其盐与具有催吐作用的药物结合使用。 化合物 (I) 或其盐类可用作止吐药。特别是，具有催吐作用的药物引起的呕吐，可以通过这些化合物以低剂量快速安全地抑制。
• Heterocyclic compounds, their production and use as tachykinin receptor antagonists
  申请人：Takeda Chemical Industries, Ltd.

  公开号：EP1184036A2

  公开（公告）日：2002-03-06

  A compound represented by the formula: wherein ring M is a heterocyclic ring wherein is one of -N=C<, -CO-N< or -CS-N<; Ra and Rb are bonded to each other to form Ring A, or they are the same or different and represent, independently, a hydrogen atom or a substituent on the Ring M; Ring A and Ring B represent, independently, an optionally substituted homocyclic or heterocyclic ring, with the proviso that at least one of them is an optionally substituted heterocyclic ring; Ring C is an optionally substituted homocyclic or heterocyclic ring; Ring Z is an optionally substituted nitrogen-containing heterocyclic ring; and n is an integer from 1 to 6, or a salt thereof has a tachykinin receptor antagonistic activity in vitro, and is useful for preventing or treating depression, anxiety, manic-depressive illness or psychopathy.

  式所代表的化合物： 其中环 M 是杂环，其中 是-N=C<、-CO-N<或-CS-N<中的一种； Ra 和 Rb 相互结合形成环 A，或者它们相同或不同，并独立地代表氢原子或环 M 上的取代基； 环 A 和环 B 独立地代表任选取代的同环或杂环，但其中至少有一个是任选取代的杂环； 环 C 是任选取代的均环或杂环； 环 Z 是任选取代的含氮杂环；以及 n 是 1 至 6 的整数，或其盐在体外具有速激肽受体拮抗活性，可用于预防或治疗抑郁症、焦虑症、躁狂抑郁症或精神病。
• Cyclic compounds, their production and use as tachykinin receptor antagonists
  申请人：Takeda Chemical Industries, Ltd.

  公开号：EP0733632B1

  公开（公告）日：2003-06-04
• HETEROCYCLIC COMPOUNDS, THEIR PRODUCTION AND USE AS TACHYKININ RECEPTOR ANTAGONISTS
  申请人：Takeda Chemical Industries, Ltd.

  公开号：EP1061926A2

  公开（公告）日：2000-12-27